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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Leica's New Geovid HD-B
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<blockquote data-quote="Mikecr" data-source="post: 878193" data-attributes="member: 1521"><p>I don't have one to test their ballistic solution with. I would recommend this if a decision point in purchase.</p><p></p><p>I'm sure it does measure absolute pressure, as this is the only measure. Where I'm concerned is in application to ballistic solution. </p><p>Altitude is not pressure, it's physical height from seal level, which is meaningless in determining air density to BC in ballistics.</p><p>If they're converting measure to pressure altitude, and applying standard conditions for this altitude, they could be messing up because it rarely applies to the real world.</p><p>Review this thread: <a href="http://www.longrangehunting.com/forums/f19/altitude-vs-barometric-pressure-11950/" target="_blank">http://www.longrangehunting.com/forums/f19/altitude-vs-barometric-pressure-11950/</a></p><p></p><p>Maybe they did just exactly what is needed for us. But don't assume it anymore than assuming your scope actually adjusts in MOA, or that BC on a box is correct for your velocities & conditions.</p><p>With LRH we have to go past generalizations straight to verified truths.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 878193, member: 1521"] I don't have one to test their ballistic solution with. I would recommend this if a decision point in purchase. I'm sure it does measure absolute pressure, as this is the only measure. Where I'm concerned is in application to ballistic solution. Altitude is not pressure, it's physical height from seal level, which is meaningless in determining air density to BC in ballistics. If they're converting measure to pressure altitude, and applying standard conditions for this altitude, they could be messing up because it rarely applies to the real world. Review this thread: [url]http://www.longrangehunting.com/forums/f19/altitude-vs-barometric-pressure-11950/[/url] Maybe they did just exactly what is needed for us. But don't assume it anymore than assuming your scope actually adjusts in MOA, or that BC on a box is correct for your velocities & conditions. With LRH we have to go past generalizations straight to verified truths. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Leica's New Geovid HD-B
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